Bobby Prince wrote all the Commander Keen music in the MIDI program, 
Sequencer Plus Gold. However, his music had to be downgraded into IMF format 
for the game. These MIDI files are rearrangements created by Bobby Prince to 
try and let you hear how the songs were originally intended to sound. These 
files were originally available from Prince's web site, but they are no 
longer available there.

Notes:
- "Aliens Ate My Baby Sitter" is about 20 seconds longer in the MIDI version.
- The "The Mambo Snake Gonna Eat You, Boy!" IMF version needs more cowbell! 
Which can be heard clearly in the MIDI version.